{"id":105372,"date":"2026-10-27T19:00:17","date_gmt":"2026-10-27T18:00:17","guid":{"rendered":"https:\/\/translinguoglobal.com\/european-patent-translation\/"},"modified":"2026-10-27T19:00:17","modified_gmt":"2026-10-27T18:00:17","slug":"european-patent-translation","status":"publish","type":"post","link":"https:\/\/translinguoglobal.com\/en\/european-patent-translation\/","title":{"rendered":"European patent translation"},"content":{"rendered":"

European patent translation into Spanish: deadlines, requirements and validation in Spain<\/b><\/h1>\n

If the European Patent Office has just granted your patent and you want it to take effect in Spain, the short answer is this: a Spanish translation of the granted text must be submitted to the Spanish Patent and Trademark Office (SPTO) within three months from the publication of the mention of the grant in the European Patent Bulletin, extendable by two months if requested within that period. If the holder does not reside in Spain, the translation must be carried out by an Industrial Property Agent. Without it, the patent has no effect in Spain. <\/span><\/p>\n

The translation of European patents<\/b> is not a minor formality: it turns a European grant into an enforceable right in Spain. In this article, we explain what to translate, in what order, which mistakes we see most frequently and how a <\/span>specialized translation agency <\/b>works alongside the patent agent.<\/span><\/p>\n

What European patent validation in Spain is and why it depends on translation<\/b><\/h2>\n

The European patent is granted through a single procedure before the European Patent Office, but afterwards it becomes a bundle of national patents. Each designated State sets its requirements for it to take effect in its territory, and Spain requires the full translation into Spanish. This procedure is the <\/span>European patent validation in Spain<\/b>, and the <\/span>European patents translation <\/b>is its centerpiece.<\/span><\/p>\n

The legal framework is in <\/span>Law 24\/2015, of July 24, on Patents<\/span><\/a>, which regulates the effects in Spain of European patents. The SPTO itself details the procedure in its <\/span> manual on the definitive protection of the European patent in Spain<\/span><\/a>, which should be reviewed with the agent. Spain does not apply the London Agreement, which in other States reduces the obligation to translate, so here the <\/span>patent translation <\/b>is complete: description, claims and text of the drawings.<\/span><\/p>\n

Does the unitary patent avoid the translation of European patents into Spanish?<\/b><\/h3>\n

Not in Spain. The patent with unitary effect managed by the <\/span> European Patent Office<\/span><\/a> only covers the participating States, and Spain is not part of the system. Although a company may obtain unitary effect in a large part of Europe, to protect its invention in Spain it must validate it through the national route with the <\/span>corresponding <\/span>European patent translation<\/b>.<\/p>\n

Deadlines and steps for translation before the SPTO<\/b><\/h2>\n

The schedule is what generates the most pressure. The three months count from the publication of the mention of grant in the European Patent Bulletin, not from when the company receives the notification from the agent. Therefore, the <\/span>translation before the SPTO <\/b>should start before the grant is published, and <\/span>European patent translation <\/b>needs its own schedule within the file.<\/span><\/p>\n

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  1. Confirm the date <\/b>of the mention of grant and calculate the due date with the agent.<\/span><\/li>\n
  2. Obtain the granted text<\/b>, which may differ from the published application.<\/span><\/li>\n
  3. \n
      \n
    1. Translate the full text<\/b>: description, claims and text of the figures.<\/span><\/li>\n
    2. Review terminology <\/b>with a second specialist and with previous family translations.<\/span><\/li>\n
    3. Deliver the translation to the agent <\/b>for its electronic filing and payment of the fee.<\/span><\/li>\n
    4. Verify the publication <\/b>in the Official Industrial Property Gazette (BOPI).<\/span><\/li>\n<\/ol>\n\n\n\n\n\n\n
      Phase<\/b><\/td>\nWhat is translated<\/b><\/td>\nReference deadline<\/b><\/td>\nWho is involved<\/b><\/td>\n<\/tr>\n
      Published European application<\/span><\/td>\nClaims only<\/span><\/td>\nVoluntary, after the application is published<\/span><\/td>\nApplicant, agent and translator<\/span><\/td>\n<\/tr>\n
      Patent grant<\/span><\/td>\nFull granted text<\/span><\/td>\n3 months from the mention (+2 with extension requested on time)<\/span><\/td>\nProprietor, agent and translator<\/span><\/td>\n<\/tr>\n
      Amendment in opposition<\/span><\/td>\nAmended text<\/span><\/td>\nConfirm with the agent as applicable<\/span><\/td>\nProprietor, agent and translator<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n

      What happens if the translation is not submitted on time?<\/b><\/h3>\n

      The patent does not take effect in Spain and the SPTO records this lack of translation in its registry. We recommend setting an internal delivery date with the agent with a margin of several weeks. The recovery routes must be analyzed with the agent or the attorney. <\/span><\/p>\n

      Who can sign the European patent translation?<\/b><\/h3>\n

      If the proprietor does not reside in Spain, the SPTO requires the translation to be carried out by an Industrial Property Agent, who usually relies on a<\/span>patent translator<\/b>or a specialized <\/span>translation agency.<\/b> For the validation, a sworn translation is not required; this appears in other contexts, such as judicial proceedings, and it is useful to know the <\/span> difference between legal and sworn translation<\/span><\/a> before ordering it. For those cases, there is our <\/span> sworn translation service<\/span><\/a>, where we have <\/span>sworn translators from the Ministry of Foreign Affairs (MAEC) <\/b>which, together with our experience of more than 10 years, allows us to offer a quality service that ensures your procedures are carried out with the highest guarantees.<\/span><\/p>\n

      Translation of claims: the part that defines the scope of protection<\/b><\/h2>\n

      The claims determine what the patent protects. A nuance in a single word can broaden or narrow that scope, and in Spain the translated text has its own legal consequences against third parties. Therefore, within the <\/span>European patent translation<\/b>, <\/span>the translation of claims <\/b>always receives a second specialized review.<\/span><\/p>\n

      The law also allows provisional protection to be obtained before the grant by submitting the translation of the claims of the published application, as detailed in the <\/span>SPTO manual on provisional protection<\/span><\/a>. The agent assesses this option depending on the risk of infringement in Spain<\/span><\/p>\n\n\n\n\n\n\n\n\n
      Original expression (EN)<\/b><\/td>\nCommon translation<\/b><\/td>\nWhy it matters<\/b><\/td>\n<\/tr>\n
      comprising<\/span><\/td>\n<\/span>que comprende\n<\/td>\nOpen claim: allows additional elements.<\/span><\/td>\n<\/tr>\n
      consisting of<\/span><\/td>\nque consiste en<\/span><\/td>\nClosed claim: excludes other elements.<\/span><\/td>\n<\/tr>\n
      characterised in that<\/span><\/td>\ncaracterizado por que<\/span><\/td>\nSeparates the prior art from the novel part.<\/span><\/td>\n<\/tr>\n
      substantially<\/span><\/td>\nsustancialmente<\/span><\/td>\nRemoving it may restrict the scope.<\/span><\/td>\n<\/tr>\n
      means for<\/span><\/td>\nmedios para<\/span><\/td>\nDefines an element by its function, not by its structure.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Confusing ‘comprising’ with ‘consisting of’ shows why the <\/span>technical language <\/span><\/a>of a patent does not allow free synonyms.<\/span><\/p>\n

      What we review before quoting a European patent translation<\/b><\/h2>\n

      Each <\/span>European patent translation<\/b> order starts with a review of the file, not with a word count. These are the points of our first consultation and the problems we see most often with agents and R&D departments. <\/span><\/p>\n

      What documentation is usually missing?<\/b><\/h3>\n